Adaptive non-local means denoising of MR images with spatially varying noise levels
نویسندگان
چکیده
منابع مشابه
Adaptive non-local means denoising of MR images with spatially varying noise levels.
PURPOSE To adapt the so-called nonlocal means filter to deal with magnetic resonance (MR) images with spatially varying noise levels (for both Gaussian and Rician distributed noise). MATERIALS AND METHODS Most filtering techniques assume an equal noise distribution across the image. When this assumption is not met, the resulting filtering becomes suboptimal. This is the case of MR images with...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2009
ISSN: 1053-1807
DOI: 10.1002/jmri.22003